Radio socket



Feb. 22, L KNUTSON RADIO SOCKET Filed Feb. 23, 1934 Inverai/021.-

C/arl LKnzzdvon y M f@ mty.'

Patented Feb. 22,

RADIO SOCKET Carl L. Knutson, Maywoodgl Ill., assignor to Cinch Manufacturing Corporation, Chicago, Ill., a

corporation of Illinois Application February 23,1934, serial No. '112,459

s claims. y(c1. 17a-32s) My invention aims to provide improvements in socket devices for receiving the projecting contacts of radio tubes and like electrical devices.

In the drawing which illustrates a preferredv embodiment of my invention:-

Figure 1 is a plan view of one form of socket embodying my invention; i

Fig. 2 is an enlarged section taken on the line 2 2 of Figure 1;

Fig. 3 is a section taken on the'line 3;-3 of Fig. k2, the contact members being omitted;

Fig. 4 is a plan section taken on the line 4--4 of Fig. 2; and

Fig. 5 is a perspective View of a preferred form of rivet structure.

The socket structure'illustrated in the annexed drawing is particularly .useful for use in connection with radio tubes provided with projecting contact members one of which is located centrally with relation to the others. It should -be understood, however, that my improved socket structure may be used with so-called connector plugs and other suitable devices Where it is desirable to use a substantially centrally located contact projection together with other surrounding projections.

The particular socket illustrated has a bottom plate I (Fig. 2) formed from relatively thin insulating material and provided with Aa number of apertures 2. In the arrangement illustrated there are ve apertures 2, one of which is located in the center of the plate I and the others of which are arranged in a circle about the central aperture, as best illustrated in Fig. 4. While yieldable contact members of any suitable con'- struction may be associated with the bottom plate I, I have shown simple contact members each of whichv is provided 4with suitable -iiange means 3 bearing upon the upper surface of the bottom plate I and a tubular contact-receiving portion 4 passing through an aperture 2 (Fig. 2).

. Each contact is also provided with a soldering lug 5 extending `from the yieldable portion` 3 for the usual purpose. 'I'he socket is also provided` with a thin top plate 6 of insulating material having apertures 'I arranged so that they may be aligned with-the apertures 2 in the bottom plate I. In the particular socket structure illustrated athin spacer plate 8 of insulating material isA interposed between the plates I and 6 to spacel those plates apart for purposes which have to do with attaching of the socket to a support-V Ying-"structuren arid which have nothing to do with the present invention. This plate 8 also has apertures aligned with the apertures 2 and .1.

As a simple means of securing the plates together and also preventingrelative rotation, so that the holes in one plate cannot become misaligned with the holes in the other plate, I'have provided a one-piece rivet member which is sub- 5 stantially U-shaped (Figs. 2 and 5) in at least through those plates, as clearly shown in, Fig. 4. The free ends of the legs II-II which have been previously bifurcated: are upset to overlie the lower face of the bottom plate I (Fig. 3) thereby securely holding the rivet in place to clamp all of the partsl of the socket together between the plate portion 9 of the rivet and the upset ends. It will be readily understood from an inspection of Figs. 2 and 4 how the rivet prevents relative rotationl of the insulating plates due to the fact that the legs II-I I of the rivet Il t closely Within the notches I2.

My improved structure is particularly useful because in the speciiic embodiment illustrated it is possible to have a central contact-receiving member in combination with a rivet which does ture is simple, easy to assemble and the parts thereof havebeen reduced to a minimum without affecting the efilciency of the structure.l

While I have illustrated and described a preferred embodiment of my invention, I do not wish to be limited thereby because the scope of my invention is best defined by the following claims. 45

I claim:

` 1. vA socket of the class described comprising, in combination, a plurality of superposed apertured plates arranged with their apertures in alignment, contact members assembled between 50 said plates and having portions passing through some'of 'the apertures and with all parts thereof located entirely below 4the top plate, one of said apertures and contacts being located substantieuy centrally of the plates with the others 55 arranged in' spaced relation about it and rivet means concentrically located with relation to said center contact for securing said plate memof the apertures having a contact member as.

sociated with it so that the yieldable means extends into the aperture,` another relatively thin plate of insulating material arranged in 'superposed relation to the rlt mentioned plate entirely above the contact members and any parts thereof and having apertures in alignment with ,the apertures of the Laid first mentioned plate and rivet means independent of the contact mem'- bers for securing said plate members together and holding them against relative rotation.

3. A socket for use with radio tubes and the like comprising, in combination, a relatively thin plate of insulating materialv having a number of apertures therethrough, one of which is located substantially centrally of the others, contact members having flange portions and yieldable means extending from the flange portions, each of the apertures having a contact member associated with it, another relatively thin plate of insulating material arranged in superposed relation to the first mentioned plate and having apertures in alignment with the apertures of the said i-lrstmentioned plate, a 7rivet having a plate portion bearing against the superposed insulat' ing plate and having an aperture in alignment with the central aperture in that plate for access to the contact member associated with the cen- .tral apertures and leg portions extending from the plate portion of said rivet through the insulating plates in notches at the sides of the central apertures and having'their ends upset to secure the parts of the socket together and prevent relative rotation of the insulating plates.

4. A socket for radio tubes and the like com# prising, in combination, a bottom plate having a central aperture therethrough and a number of similar apertures circumferentially arranged about the central aperture, a contact member associated with each of said apertures and provided with ilange means bearing against the upper surface of the bottom plate and yieldable contact-receiving portions passing through the apertures, a top plate superposed upon the bottom plate and having apertures therethrough in alignment with the apertures in the'bottom plate and a single U-shaped rivet having an apertured portion bearing against the upper surface of the top plate in alignment with the central aper ture therein and having its leg portions passing through both plates with the freeends thereof upset against the bottom plate, said single rivet providing the only means securing the parts of the installation in predetermined assembled relation.

5. In a socket device for use with a part having a male electrical contact member, at least two superposed apertured insulating plates arranged with the aperture of one plate in alignment with the aperture in another, a female electrical contact member assembled with a portion `between said plates and another portion extending through one of said plates, and a one-piece generally' U- shaped rivet arranged concentrically with said apertures and having the leg portions of the U extending through said plates and the free ends upset to hold the parts of the device in assembly.

6. In a socket device for use with a part having a male .electrical contact member, said socket device including a pair of insulating plates, a female electrical contact member assembled as apart of the socket device to receive the male contact member and a U-shaped assembly rivet having an apertured portion in alignment with the female contact member and having its leg portions spanning the female contact member with the `free ends of the leg portions upset to hold the plates of the socket device in assembled relation.

CARL L. KNUTSON. 

